/* SmartScan AI OCR – Stylesheet */

/* ============================================================
   Reset & Basis
   ============================================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-light: #dbeafe;
    --color-success: #16a34a;
    --color-success-light: #dcfce7;
    --color-error: #dc2626;
    --color-error-light: #fef2f2;
    --color-warning: #f59e0b;
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-border: #e2e8f0;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08);
    --transition: 0.2s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ============================================================
   Layout
   ============================================================ */

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* ============================================================
   Header
   ============================================================ */

.header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.5px;
}

.logo-icon {
    font-size: 1.6rem;
    margin-right: 0.25rem;
}

.logo-sub {
    font-weight: 400;
    color: var(--color-text-secondary);
    font-size: 1.4rem;
}

.tagline {
    color: var(--color-text-secondary);
    font-size: 1rem;
    margin-top: 0.25rem;
}

/* ============================================================
   Upload-Bereich
   ============================================================ */

.upload-section {
    text-align: center;
}

.upload-area {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    cursor: pointer;
    transition: all var(--transition);
    background: var(--color-surface);
}

.upload-area:hover,
.upload-area.drag-over {
    border-color: var(--color-primary);
    background: var(--color-primary-light);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 0.75rem;
}

.upload-area h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.upload-area p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.upload-hint {
    font-size: 0.85rem !important;
    margin-top: 0.5rem;
}

.file-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1rem;
    padding: 0.75rem 1rem;
    background: var(--color-primary-light);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
    margin-top: 1.25rem;
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-bg);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
    background: var(--color-primary-light);
}

.btn-small {
    padding: 0.35rem 0.6rem;
    font-size: 0.8rem;
}

/* ============================================================
   Status-Anzeige
   ============================================================ */

.status-section {
    margin: 2rem 0;
}

.status-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    background: var(--color-primary-light);
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.spinner {
    width: 22px;
    height: 22px;
    border: 3px solid var(--color-primary-light);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.progress-steps {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
    padding: 0 0.5rem;
}

.step {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.step.active {
    color: var(--color-primary);
    font-weight: 600;
}

.step.done {
    color: var(--color-success);
}

.step.done .step-icon {
    color: var(--color-success);
}

/* ============================================================
   Ergebnis-Panel
   ============================================================ */

.result-section {
    margin-top: 2rem;
}

.result-section h2 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
}

.result-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.field-group {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    transition: border-color var(--transition);
}

.field-group:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.field-group label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
}

.field-input {
    width: 100%;
    border: none;
    outline: none;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    background: transparent;
    font-family: inherit;
}

.field-input::placeholder {
    color: var(--color-border);
}

/* ============================================================
   OCR-Rohtext
   ============================================================ */

.ocr-details {
    margin: 1.5rem 0;
}

.ocr-details summary {
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    padding: 0.5rem 0;
}

.ocr-text {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 1rem;
    font-size: 0.8rem;
    line-height: 1.5;
    max-height: 300px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
    font-family: "SF Mono", "Consolas", "Menlo", monospace;
}

/* ============================================================
   Aktionen
   ============================================================ */

.action-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

/* ============================================================
   Fehler-Anzeige
   ============================================================ */

.error-section {
    margin-top: 2rem;
}

.error-box {
    background: var(--color-error-light);
    border: 1px solid var(--color-error);
    border-radius: var(--radius);
    padding: 1.5rem;
    text-align: center;
}

.error-box h3 {
    color: var(--color-error);
    margin-bottom: 0.5rem;
}

.error-box p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

/* ============================================================
   Auth-Screen
   ============================================================ */

.auth-screen {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #eff6ff 0%, #f8fafc 100%);
}

.auth-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    text-align: center;
}

.auth-form {
    margin-top: 2rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    text-align: left;
}

.auth-form h2 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
    margin-bottom: 0.3rem;
}

.form-group input {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition);
}

.form-group input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}

.auth-error {
    background: var(--color-error-light);
    color: var(--color-error);
    padding: 0.6rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.auth-switch {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.auth-switch a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

.auth-switch a:hover {
    text-decoration: underline;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* ============================================================
   Top-Bar
   ============================================================ */

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.topbar-left {
    display: flex;
    align-items: center;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-small {
    font-size: 1.2rem;
}

.user-info {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.plan-badge {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    background: var(--color-primary-light);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================================
   Dashboard
   ============================================================ */

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.dashboard-header h2 {
    font-size: 1.3rem;
    font-weight: 700;
}

.stat {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    background: var(--color-bg);
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-sm);
}

.invoice-list {
    margin-top: 1.25rem;
}

.invoice-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem 1rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    margin-bottom: 0.5rem;
    cursor: pointer;
    transition: all var(--transition);
}

.invoice-row:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow);
}

.inv-main {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.inv-status {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
    flex-shrink: 0;
}

.inv-status-done { background: var(--color-success); }
.inv-status-processing { background: var(--color-warning); }
.inv-status-error { background: var(--color-error); }
.inv-status-uploaded { background: var(--color-primary); }

.inv-filename {
    font-size: 0.9rem;
    font-weight: 500;
}

.inv-details {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.inv-amount {
    font-weight: 600;
    color: var(--color-text);
}

.empty-state {
    text-align: center;
    color: var(--color-text-secondary);
    padding: 3rem 1rem;
    font-size: 0.95rem;
}

.back-btn {
    margin-bottom: 1rem;
}

/* ============================================================
   Footer
   ============================================================ */

.footer {
    margin-top: 3rem;
    text-align: center;
    color: var(--color-text-secondary);
    font-size: 0.8rem;
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 640px) {
    .container {
        padding: 1.25rem 1rem;
    }

    .result-grid {
        grid-template-columns: 1fr;
    }

    .action-bar {
        flex-direction: column;
    }

    .progress-steps {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .topbar {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .invoice-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .dashboard-header {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
}